Can end curling and compound lining machine



April 16, 1963 R. E. RENARD ErAL CAN END CURLING AND coMPouND LINING MACHINE Filed April 25, 1958 9 Sheets-Sheet 2 ,N/L .D Y Nm M TN/ Nfv @7 ERA o W .0f n 1E. ww

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April 16, 1963 R. E. RENARD ETAL CAN END CURLING AND coMPouND LINING MACHINE Filed April 25, 195s 9 SheetsSheet 5 INVENTORS.

JAMAS P. DAV/050# BY (I A fla/2x27 April 16, 1963 R. E. RENARD ETAL CAN END CURLING AND coMPouND LINING MACHINE Filed April 25, 1958 9 SheetswSheet 4 DN M Y OND Tfw w NRA@ E .D 0 wf z lop N MB M aM /v April 16, 1963 R. E. RENARD ETAL CAN END CURLING AND COMPOUND LINING MACHINE Filed April 25, 1958 9 SheetsSheet 5 /23 INVENTORS.

ROLAND 2 RENARD JAM-LS P. DAV/D OA/ BY /22 4/4 /46 Zwam April 16, 1963 R. E. RENARD ETAL 3,085,532

CAN END cuRLING AND coMPoUND LINING MACHINE Filed April 25, 195s 9 sheetsheec e Rc1-Arima oF LEVER SYSTEM BASIC LEVER SYSTEM 05 CII-LATION OF LEVER SYSTEM INVENTORS. ROLAND E. PEA/44K@ JAMES P. DAVIDSON CYLINRICAL .SLEEVE BY Q SHAFT M April 16, 1963 R. E. RENARD Erm. 3,085,532

CAN END CURLING AND coMPouND LINING MACHINE Filed April 25, 1958 9 Sheets-$heet 8 BYWZM DM um ,L Y O w TEA W MRD y@ wf. f op M N5 AE am RJ April 16, 1963 R. E. RENARD ETAL 3,085,532

CAN END CURLING AND COMPOUND LINING MACHINE Filed April 25, 1958 9 sheets-sheet s m HG1/3 z/s ,V3-{- I I E] fz/7 EXHA Fla. vAZ

INVENTORS. ROLAND PEA/ARD JAMES l;- DAV/DSON United States Patent Oce 3,@8553-2 Patented Apr. 16, 1963 3,085,532 CAN END CURLHNG AND COMPOUND LINEN@ MACHINE Roland E. Renard, Los Gatos, and James P. Davidson,

Los Altos, Calif., assignors to National Can Corporation, Chicago, lll., a corporation of Delaware Filed Apr. 25, 1958, Ser. No. 730,939 7 Claims. (Cl. 113-80) This invention relates to a new and improved noncircular can end-curling and lining machine. More particularly, the invention relates to a machine which first curls the -ange of noncircular can ends and then sprays lining compound into the trough of the end. The machine receives punched ends of noncircular shape, such as oval or rectangular ends, and lperforms -at least tvv-o necessary operations in the manufacture of the completed end, lwhereupon the end may be cured or dried and then seamed onto a can body.

The machine employs a frame which houses the drive parts thereof and 4supports reciprocating feed Ibars which move the ends from station to station longitudinally of the machine. Thus, at the rst station, a stack of punched ends is fed into the machine one at a time for each stroke of the machine. At another station, the flange is curled and, at still another station, lining compound is applied. One or more idle stations may be interposed between the stations heretofore mentioned. Thereafter the ends are discharged from the machine.

Accordingly, it is a principal purpose of the present invention to provide a unitary machine `which performs operations on a can end in sequence, the various stations being interrelated and driven from `a ycommon source. Further, a single drive for the curling and lining stages is employed. v

One feature and advantage of the present invention relates to the construction of the curl station, wherein a compound leverage system is employed to impart to the curling roller a movement conforming to -the general :shape of the can `end being curled and simultaneously to move the curling roller inwardly progressively during the cycle of operation.

A `further feature of the invention is the provision of means whereby each of the `several curling rollers may be individually inactivated While the accuracy of adjustment of the remaining rollers is checked and adjusted.

Other features `of the invention reside in the lining station, wherein there is provided -a combination of hydro and pneumatic mechanisms, together'with an electrically `operated mechanism which opens the needle valve controlling discharge of the spray compound from the spray nozzle at precisely the right time and for the proper duration. At the same time the nozzle istraveling about a pathcorresponding roughly to the shape of the end, so that the lining compound is deposited in the trough of the end.

One advantage of the present invention is the fact that there is no need of flexible piping for the compound, whereas in previous machines of this general character various types lof yflexible piping are employed, which piping with passage of time becomes a source of leakage. By reason of the inflammable lnat-ure of t-he lining compound, a serious tire hazard arises from leakage.

A `further reduction in the tire hazard occurs in th-at the compound is transmitted through the sleeves, and

during a considerable part of its path of travel tne compound conduit is surrounded by the compressed air conduit which further reduces the tendency of leakage of the compound.

An additional feature of the present invention is the fact that -there is no mechanical connection between the compound valve needle and an outside source, Ibut on the contrary an electro-mechanical control is employed whereby the needle is raised and lowered by a compressed air cylinder and the admission of compressed air to the cylinder is controlled by an electrical circuit accurately Itimed to the cycle of operation of the machine. In addition, a switch `is provided which insures that the needle valve will not open when, -for some reason, a can end is not deposited under the lining station.

An additional yfeat-ure of the present invention is the fact that fewer par-ts are required to control the shape of the path of the nozzle, thereby lsimplifying the operation of the machine Vand reducing the necessity for repair thereof.

Other objects of the present invention will become apparent .upon reading the following specification and referring to -theaccompanying drawings in which similar characters of reference represent corresponding parts in each of the several views.

In the drawings:

FIG. l is a top plan of the machine with certain parts removed;

FIG. 2 is a longitudinal vertical lsectional view taken substantially along line 2-72 ofFIG. l, with certain parts broken away in section to reveal interior construction;

FIG. 3 is a transverse `vertical 4sectional view taken substantially along lline 3--3 ofFIG. 2 and showing the curling station; Y

FIG. 4 is aA horizontal sectional view taken substantially along line `4--4 of FIG. 3;

FIG. 5 is a horizontal sectional view taken substantially along line 5 5 of FIG. 3;

FIG. 6 is an enlarged fragmentary sectional view taken substantially-along line 6 6 of FIG. -5;

FIG. 7 is a fragmentary sectional view taken substantiallyalong line 7--7 of FIG. 5;

FIG. l8 is a schematic perspective view of the basic lever system of thecurling station;

FIG. 9 is a transverse sectional view taken substantially along line-.9 9 of FIG. 8, showing the `lining station; FIG. lOis a horizontal sectional -vieW taken substantiallyalong Aline lll-10 of FIG. 9;

FIG. 1l is a simplified, schematic View `of FIG. 7.

FIG. l2 is a fragmentary sectional View taken -substantially along line 12-12 of FIG. 9.

FIG. 13 is a schematic wiring diagram of a vportion of the electrical circuit of the lining station.

'Ihe machine which is the subject of the present invention comprises -a base frame 21 and a superstructure V22 supported by the base vframe 21 and overlying the curling vand lining stations. Suitably journaled in the base frame 2 1-is the main drive shaft 23 fwhich is driven from I.fa-main ,drive motor (not shown) by means of pulley 16 on motor .shaft 17 and belts 18 and main drive pulley 24 located on `one end 4of Vthe shaft 23 externally of the base frame y21. Likewise suitably journaled in base frame 21 andextending longitudinally parallel to main shaft A23) is cam shaft 26 which functions to raise and lower chucks at several stations of the machine in timed sequence to the cycle of operation. Cam shaft 26 carries a projecting lever 27 bifurcated at its end to receive follower roller 28 which bears against lifter 29 reciprocating in a guide 31 depending from the main frame. Lifter 29 carries a cam roller follower 32 on its lower end, which engages cam 33 on main shaft 23. Thus, as shaft 2-3 revolves, cam shaft 26 is caused to oscillate in conformity with the shape of cam 33.

At the top of the base `frame 21 is a feed table 36 which extends horizontally substantially the entire length of the machine. The can ends 37, here shown rectangular in shape, are fed from station to station at the level of the feed table 36 and, when they are received at each station, are lifted by chucks, as hereinafter explained, above the level of table 36. Table 36 provides a pair of horizontally disposed feed rails 38 which are spaced apart a distance slightly less than the width of the end 37. Positioned outwardly of rails 38 are elongated longitudinally extending, horizontally reciprocating feed bars 39, which slide in ways 41 associated with the base frame 21 and are retained between the ways 41 and the feed rails 38. At spaced intervals along the length of bars 39 are inwardly extending feed fingers 42 which engage the trailing end of the can end 37 to move it from station to station longitudinally of the machine. Feed bars 39 are interconnected at one end of the machine by transversely extending cross-head l43, and this cross-head is connected to horizontally positioned connecting rod 44 by means of pin 46. The opposite end of rod 44 is connected by pin 47 to crank cheek 48. Crank cheek 48 is caused to revolve in a horizontal plane by means of vertical shaft 49 which is driven from main shaft 23 by bevel gears 51 on shafts 49 and 23. Thus, the shaft 23 as it revolves causes a reciprocation of feed bars 39. 'Ihe spacing between feed fingers 42 corresponds to the distance between the stations of the machine and in no event is less than the length of the can end 37.

As shown in the accompanying drawings, the can end `37 is rectangular in shape and is of maximum length for the capacity of the machine. However, it will be understood that shorter ends may be employed and, further, that the overall width thereof may be varied by varying the distance between the feed rails 38, all as well understood in the can-making art.

Spaced longitudinally of the machine are the following stations:

Feed Station A--wherein a stack of punched can ends is supported above the level of the feed table 36 and the can ends are fed down onto the level of the feed table one at a time by means not herein illustrated and well understood in the can-manufacturing art.

Idle Station B-to provide room between Station A and the next station of the machine.

Curling Station C-wherein a curl is imparted to the flange of the end.

Idle Station D-to provide space between Station C and the next station.

Lining Station E-wherein lining compound is sprayed into the trough of the can end.

Idle Station F-to provide space between Station E and the next station.

Stacking Station G-wherein the ends are stacked for removal.

Feed Station A The construction of the feed station is not herein illustrated or described and forms no part of the present invention, inasmuch as means for feeding an end at a time from a vertical stack of ends is well understood in the can-making art, and there are numerous mechanisms for such purpose. At the forward end of Station A is a stop mechanism which consists of a lever 56 pivoted about a transverse axis 57 having an upwardly extending finger 58 which, in timed sequence to the operation of the machine, is interposed into the path of the ends along the feed table 36 to stop movement thereof. The end of levers 56 opposite pivot 57 is connected by a pin 59 to a vertical rod 61, the lower end of which is connected by pin 62 to a bifurcated member 63 which carries a cam follower 64 riding upon cam 65 on shaft 23. Thus, as shaft 23 revolves, the finger 58 is raised above the level of the table 36, to prevent unintentional forward movement of a can end.

Idle Station B Idle Station B carries a chuck 71 shaped to fit on the underside of the can end 37 Chuck 71 has on its lower surface a vertically reciprocal hollow rod 72 which slides in guide 31 fixed to frame 21. Inside rod 72 is a spring 66 which biases downwardly a tappet 67 which bears against the roller 28. Hence, as cam shaft 26 oscillates, chuck 711 is raised and lowered in sequence to the turning of main shaft 23. Above the level of table 36 is a foot 76 which is biased downwardly by means of spring 77 from a fork 78 fastened to the machine. Foot 76 creates a drag on the end 37 so that it remains at the idle station and is not moved forwardly or rearwardly by the reciprocation of the bars 39. Thus, as the end 37 is delivered at Idle Station B, the shape of cam 33 is such that the chuck 71 is below the level of table 36. After the feed fingers 42 have advanced the end to the station B, the foot 76 prevents longitudinal movement of the end 37. Thereafter, in timed sequence to the movement of the machine, the chuck 7'1 raises, spring 77 compressing to accommodate this movement, and the end 37 is raised above the level of the table 36. Such movement enables the bars 39 to retract in their reciprocating movement without the returning feed fingers 42 moving the end backward.

Curling Station C At the curling station, the machine operates on the ends to curl inwardly the peripheral ange thereof in order to form the troughs in which lining compound is later deposited (at Station E). The end delivered from Idler Station B by feed fingers 42 is deposited upon a lower chuck 81 on the upper end of rod 82 vertically reciprocable in guide `83 attached to frame 21. Rod 82 is biased downwardly by spring 84, so that cam follower roller 86 on the lower end of rod 82 is held in contact with cam 87 on main shaft 23. Cam 87 is similar in function to cam 33, but has a somewhat different shape so as to hold chuck 81 above the surface of table 36 for a longer period of time. Above the level of feed table 36 is an upper chuck 91 on the lower end of chuck rod 92 disposed within hollow vertical spindle 93 and biased downwardly by spring 94. Thus, when, by reason of action of cam 87, chuck 81 is elevated, the end is secured between chucks 81 and 91. Spindle 93 is mounted in bracket 96 supported by superstructure 22 and is surrounded by two sleeves, namely, an inner sleeve 97 and an outer sleeve 98, which are rotatable about spindle 93 and likewise rotatable relative to each other. Sleeves 97 and 98 are driven by means of sprockets 99 and 101 fixed thereto, respectively, and sprockets 99 and 101 are driven in turn by chains 102 and 103, respectively, which pass around sprockets 104 and 106 on the upper end of vertical shaft l107 disposed at one side of the machine. It will be understood, as hereinafter appears, that the chain 102 drives the rotatable mechanism of the Lining Station E as well as (hirling Station C. Shaft -107 carries a bevel gear 108 at its lower end, which meshes with bevel gear 109 on horizontal shaft 111. Shaft 111 has bevel gear 112 which meshes with bevel gear 113 on shaft 23, so that the curling and lining stations are driven in synchronism with the other parts of the machine.

The Curling Station C includes a pair of first operation curling rollers 116, which are disposed on diametrically opposite sides of chuck 91, and also a pair of second operation curling rollers 117 which are disposed on diametrically opposite sides of chuck 91 and angularly displaced approximately 90 from rollers 16. Each end 37 is rst acted upon by a pair of first operation rollers 116 and then by a pair of second operation rollers 117, all as well understood in the curling art. Inasmuch as the actuation of rollers 116 and 117 is substantially the same, the means for actuating only one of rollers 116 will be described. Roller 116 is rotatably disposed in a boss 118 on the outer end of horizontal lever 1119. A vertical shaft :121 is fixed to the inner end of arm 119. Shaft 121 is eccentrically rotatably mounted in a cylindrical sleeve 122 received in a housing 123 and supported from sleeve 97. The upper end of shaft 121 carries a horizontally disposed arm 124 on the outer end of which is a cam follower roller 126 fitting into the groove 127 of a box cam 128, which is a change part of the machine, in that it may be replaced when different sized or shaped can ends are being curled.

The inward and outward movement of irst and second operation rollers 116 and 117 and their curl and nocurl position are controlled by rst and second operation curl cams 136 and `137, respectively, on the periphery of sleeve 98. The elevation of cams 136 and y137 is different, and hence cam follower rollers 138 and '139, respectively, engage only one of the cams 136 and 137, and thus control separately the rollers 116 and 117. Roller 138 is held in contact with the outer edge of curling cam 136 and roller 139 is held in contact with the outer edge of cam 137 by reason of spring 129 interposed between a boss 13-1 on an extension of sleeve 97 and the arm 124. The pressure of spring i129 may be adjusted by means of adjustment screw 132 in arm 1-41. It will be noted that the diameters of sprockets 99 and v101 are different, so that there is a relative movement between sleeves 97 and 98, and hence the rollers 13'8 and 139 move relative to cams 136 and 137 at a slow rate as the sleeves 97 and 98 revolve around the spindle 92. Roller 138 is mounted on the outer end of horizontally disposed arm 141. Arm 141 carries on its opposite end a yoke 142 in which is rotatable a horizontally disposed adjustment screw 143. Between the bifurcations 1142 is an adjustment block 144` which receives the upper end of rod 146. A lock screw 147 disposed at right angles to screw 143 bears against block 144 and locks the same in position, once its adjustment is completed. Rod 146 is oscillatable inside a bore in cylindrical member 122, and on its lower end it carries a lever 148 having a finger grip 149 disposed above boss 118. A recess 151 is cut in cylindrical memI ber 122 to permit a ninety-degree movement of rod 146. The upper end of rod 146 carries a block i152 which is received in a recess l153 in block 144, and by reason of the fact that block 152 is eccentric relative to rod 146, turning of lever 148 causes roller 116 to be removed from contact with can end 37.

Rod 146 is formed with a plurality of notches, which are engaged by inwardly projecting detents 157 slidable in horizontal guides 158 in cylindrical member 122. Detents 157 engage notches and hold the rod 146 in its curl or no-curl position as the case may be, and prevent unintentional dislodgment thereof.

The 11o-curl position of the curling roller permits inspection of the adjustment of the opposite roller, as is well understood in the curling and the can-seeming arts. The adjustment of the curling rollers 116 and i117 is by turning screw 1143.

The composite effect of the shape of cams 127 and 136 and 137 is such that the rollers 116 and 117 are caused to revolve about the end 37 in a path which assumes the shape of the particular can end 37 being curled. The rst operation rollers 116 initially contact the end 37 and gradually move inward until the first part of the curling operation is completed. During the rst operation, the second operation curling rollers 117 are held inoperative. Thereafter, rollers 116 are held inoperative and rollers 117 perform their function.

After the second operation is completed, both sets of rollers 1'16 and 117 are Withdrawn from contact with the end 1317 and the curling operation is completed. The chuck 81 retracts the end 37 to the level of the feed table 36, and the feed bars 139 then move the end to Idle Station D.

The Ivarious elements described in the section entitled Curling Station C are sometimes referred to in the claims as edge bending elements.

Idle Station D This station is similar in construction to Station B. Similar reference numerals are applied to Station D.

Lining S tation E At Lining Station E there is located a chuck 161 similar to chuc-k 71 and raised and lowered in timed sequence to the operation of the machine relative to the feed table 36 by means of arm 162 on cam shaft 26. A nozzle 163 is positioned above the chuck 161 and is given a movement roughly similar to the s'nape of the trough of end 37 as formed at Station C. The movement of nozzle 163 is controlled by means of box cam 164 stationarily mounted at the lining station.

The operating mechanism Ifor the lining station is supported from a vertically bored support 166 attached to the superstructure 22. Within support 166 is a hollow spindle 167 and within the bore of hollow spindle 167 is a pipe 168. Pipe 168 is connected at its upper end 169 to a source of compressed air. The duct 171 between pipe 168 and spindle 167 is connected at its upper end by means of conduit 172 to a source of lining compound. Rotata-ble about spindle 167 is a head 173 having an outward extension 174 and a depending vertical member 176. Head 1,73 is driven by -means of sprocket 1 77 around which chain 10'2 passes. The lower end of member 176 carries a horizontally disposed arm '178 on the outer end of which is mounted cam follower roller y179 which ts in groove 181 .of cam 164. The upper end of head 1-73 carries an annular insulated block 182 on the top of which is a conductive collector ring 183 engaged by brush 184 depending from the superstructure 22 and connected to a source of electrical energy indi-l cated byV reference numeral 186. Thus, as head `173 re* volves, brush 184 maintains constant electrical contact with ring 1183, and this is transmitted by means of electrical conduit 187 to the needle valve control housing `l188 disposed to one side of member 1718.

The outward extension 174 is formed with two ducts 191 and 192, which communicate with duct 171 and the interior pipe 168, respectively, there being appropriate sealing rings 198 so that, as the head 173 revolves, 'constant fluid communication is maintained between ducts 191 and 192 and 171 and 168, respectively. -Duct 191 communicates with a vertically positioned duct 193 in vertical member 176, and duct l192 communicates with vertical duct 194 in member 176. Duct 19:4 surrounds duct 193 for a considerable portion of its passage and tends to prevent leakage of sealing compound and thus reduces the chance of afire hazard.

Nozzle 163, as best shown in FIG. l0, is controlled by a needle valve 281 which is vertically reciprocal and on its upper end carries a pneumatic piston 28,2 vertically reciprocal in pneumatic cylinder 263. A duct 204 communicates between duct 193 and the chamber 286 in cylinder 283. Piston '2112 is pneumatically `controlled, there being an upper port V207 and a lower port 268 in cylinder 283. Compressed air from duct 194 passes into pneumatic valve chamber 209 and is alternately directed to port 287 or port 208 by slide valve 211. Slide valve 211 is controlled by a pair of solenoids 2112 and 213.

The wiring diagram for solenoids 212 and 213 is shown in FG. 12. As illustrated in FIG. l2, a source of alternating current 216 is rectified by rectifier 217. Lead 218 extends to a terminal 219 with which contact is made and broken by contact 221 on the timer arm of timer switch 222 which is controlled by timer cam 223, which is rotated in timed relation to shaft 23 by means not herein illustrated and described. In series with the timer switch 222 is an end detector switch 224 mounted on chuck 161. When detector finger 226 is depressed by reasons of the presence of a can end 37 on the chuck 161, switch 224 is closed. So long as switches 222 and 224 are closed simultaneously, relay 227 is energized. Energization of relay 227 closes a holding contact 228 which short-circuits switch 22.4 and assures energization of relay 227 until timer cam 223 opens switch 222. Relay 227 also has two other contacts 229 and 231. Contact 229 is connected by lead 23?. to a pair of silicon half-wave rectifiers 233 and 234. The polarity of rectifiers 233 and 234 is reversed, the rectifier 233 being connected to solenoid 212 and rectifier 234 being connected to solenoid 213. When relay 227 is energized, contact 229 is attracted to the contact 236 which is directly connected to the negative side of rectifier 217, and this energizes solenoid 213 which opens valve 201. When relay 227 is deenergized, contact 229 engages contact 237 which is connected to the positive side of rectifier 217, and hence current passes to solenoid 212 through rectifier 233 and the valve is closed. Solenoids 212 and 213 are grounded as indicated by reference numeral 238, and accordingly contact 23-1 is likewise grounded. Contact 231 engages either of contacts 239 or 241 which are always at opposite polarity with respect to contacts 236 and 237, respectively. Thereby the circuit through the solenoids is completed.

Thus, the end 37 is supplied with lining compound through nozzle 163. Cam 223 holds the needle 201 open for a sufficient length of time to spray the desired amount of compound into the trough of the end 37. While the nozzle 163 is open, cam 181 controls the movement of nozzle 163 to follow the contour of the trough of the end I37. If no end is present in the lining station, switch 224 prevents opening of the needle 201.

Idle Station F Idle Station F is similar in construction to Idle Station D and similar reference numerals are applied.

Stacker Station G -At the right end of the machine, as viewed in FIGS. 1 and 2, is the stacker station, which is not illustrated or described herein in detail. Chuck 71 at said station is actuated in the same manner as chuck 71 of the preceding stations. On `the up stroke of chuck 71, the end received from Idler Station -F is lifted above the surface of feed table 36. AWhen it has been lifted, the end is received in a stacking mechanism, as well understood in the can-manufacturing art. There are many such stacking mechanisms, and several conventional types may be employed in conjunction with the present invention. Alternatively, a dryer of conventional type to cure or dry the lining compound may be installed at Station G.

What is claimed is:

1. In a machine for curling and lining non-circular can ends of the type having a plurality of longitudinally spaced stations and a frame, a drive shaft journalled in said frame, and means driven by said drive shaft for :advancing a can end from station to station along said frame, said end being non-rotatably held at each said station, the improved combination comprising curling means at a curling station, said curling means including a first drive sprocket arranged to drive said curling station, said curling means having a curling spindle on which said first drive sprocket is mounted and on which are also mounted edge `bending elements for curling said end, lining means at a lining station, said lining means including a second drive sprocket arranged to drive said lining station, said first and second drive sprockets being driven from said drive shaft by a chain connecting said first and second sprockets, said lining means comprising a lining spindle, a head, means for rotating said head about said lining spindle, said last mentioned means including said second drive sprocket, a nozzle mounted for movement with said head, cam means for imparting to said nozzle an oscillatory movement relative to said head to conform the path of said nozzle to the shape of said can end as said head moves around said lining spindle, means for delivering lining compound through said lining spindle and said head to said nozzle, lining compound valve means for controlling emission of lining compound through said nozzle, and valve-actuating means for actuating said lining compound valve means.

2. A machine according to claim l, in which said valve-actuating means comprises a fluid cylinder in said nozzle means for delivering fluid under pressure to said fluid cylinder, a piston in said fluid cylinder connected to said lining compound valve means, fluid valve means in said head controlling flow of fluid to said fluid cylinder to open and close said lining compound valve means, a pair of solenoids in said head positively controlling said fluid valve means, both for opening and closing of said lining compound valve means, an electric switch opened and closed in timed relation to rotation of said drive shaft, an electric circuit including said switch and solenoids to govern emission of lining compound from said nozzle, and means separating said -fluid cylinder from said nozzle whereby fluid is not discharged through said nozzle.

3. A machine according to claim 2, in `which said means for delivering fluid extends through said spindle and head.

4. A non-circular can end lining mechanism comprising means for holding a non-circular can end, a spindle, a head journalled on said spindle, means for revolving said head and said spindle, an arm pivotally mounted on said head, a nozzle on said arm, means for moving said arm relative to said head to impart to said nozzle a non-circular path conforming to the shape of said can end, double-acting lining compound valve means for said nozzle mounted for movement with said nozzle, said lining compound valve means comprising a compound valve having a stem, a double acting fluid cylinder having a .piston directly connected to said stem, a double-acting fluid valve located in close proximity to said fluid cylinder and movable with said compound valve controlling flow of fluid to said fluid cylinder to open and close said lining compound valve means, means including said fluid valve for delivering fluid under pressure to said fluid cylinder from a source remote from and movable independently of said nozzle, a pair of solenoids positively controlling said fluid valve, an electric circuit for said solenoids including a switch opened and closed in timed relation to movement of said nozzle, and lining compound delivery means including said lining compound valve means for delivering lining compound to said nozzle, and means separating said fluid cylinder from said last mentioned means whereby fluid is not discharged through said nozzle.

5. Mechanism according to claim 4 in which said lining compound delivery means and said fluid delivery means extend through said spindle, said head, and said arm.

6. Mechanism according to claim 4 in which said fluid delivery means comprises a pipe extending through said spindle, a first duct in said head, means for sealing communication between said pipe and said first duct while said head turns, and a second duct in said arm communicating with said first duct while said arm turns, said second duct connecting to said fluid valve; and in which said lining compound delivery means comprises, a third duct in said spindle, a fourth duct in said head, means for sealing communication between said third and fourth ducts as said head turns, an arm pivotally mounted on said head and on which said nozzle is fixed, and a fifth duct in said arm leading to said nozzle communicating with said fourth duct while said arm turns.

`7. Mechanism according to claim 6 in which said third duct surrounds said pipe and said fourth duct is inside said rst duet for at least a `substantial part of its length.

References Cited in the ile of this patent 5 UNITED STATES PATENTS Krueger et al. Dec. 20, 1932 :Coyle May 30, 1933 Coyle Apr. 17, 1984 10 10 'Heald -y Sept. 1, 19136 Cameron Dec. 1, 1936 Gusta-fsson et al. Aug. 3J, 1943 Roselund f Mar. 14, 1944 Clark Sept. 12., 1944 'Peterson et al. lJune 24, 1952 Shanlip et al. Oct. 13, 19513 Glowen et al. July 24, 1956 Siefen Jan. l6, 1959 Simpson Oct. 4, 1960 

1. IN A MACHINE FOR CURLING AND LINING NON-CIRCULAR CAN ENDS OF THE TYPE HAVING A PLURALITY OF LONGITUDINALLY SPACED STATIONS AND A FRAME, A DRIVE SHAFT JOURNALLED IN SAID FRAME, AND MEANS DRIVEN BY SAID DRIVE SHAFT FOR ADVANCING A CAN END FROM STATION TO STATION ALONG SAID FRAME, SAID END BEING NON-ROTATABLY HELD AT EACH SAID STATION, THE IMPROVED COMBINATION COMPRISING CURLING MEANS AT A CURLING STATION, SAID CURLING MEANS INCLUDING A FIRST DRIVE SPROCKET ARRANGED TO DRIVE SAID CURLING STATION, SAID CURLING MEANS HAVING A CURLING SPINDLE ON WHICH SAID FIRST DRIVE SPROCKET IS MOUNTED AND ON WHICH ARE ALSO MOUNTED EDGE BENDING ELEMENTS FOR CURLING SAID END, LINING MEANS AT A LINING STATION, SAID LINING MEANS INCLUDING A SECOND DRIVE SPROCKET ARRANGED TO DRIVE SAID LINING STATION, SAID FIRST AND SECOND DRIVE SPROCKETS BEING DRIVEN FROM SAID DRIVE SHAFT BY A CHAIN CONNECTING SAID FIRST AND SECOND SPROCKETS, SAID LINING MEANS COMPRISING A LINING SPINDLE, A HEAD, MEANS FOR ROTATING SAID HEAD ABOUT SAID LINING SPINDLE, SAID LAST MENTIONED MEANS IN- 